Alarm clock



FIG. 1 is a rear, top perspective view of an alarm clock showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines showing of elements on the alarm clock, illustrate portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for an alarm clock, as shown and described. 